Package org.apache.cayenne.exp.parser
Class ASTList
java.lang.Object
org.apache.cayenne.exp.Expression
org.apache.cayenne.exp.parser.SimpleNode
org.apache.cayenne.exp.parser.ASTList
- All Implemented Interfaces:
Serializable,Node,XMLSerializable
A leaf expression representing an immutable collection of values.
- Since:
- 1.1
- See Also:
-
Field Summary
FieldsFields inherited from class org.apache.cayenne.exp.parser.SimpleNode
children, id, parentFields inherited from class org.apache.cayenne.exp.Expression
ADD, ALL, AND, ANY, ASTERISK, BETWEEN, BITWISE_AND, BITWISE_LEFT_SHIFT, BITWISE_NOT, BITWISE_OR, BITWISE_RIGHT_SHIFT, BITWISE_XOR, CASE_WHEN, CUSTOM_OP, DB_PATH, DBID_PATH, DIVIDE, ELSE, ENCLOSING_OBJECT, EQUAL_TO, EXISTS, FALSE, FULL_OBJECT, FUNCTION_CALL, GREATER_THAN, GREATER_THAN_EQUAL_TO, IN, LESS_THAN, LESS_THAN_EQUAL_TO, LIKE, LIKE_IGNORE_CASE, LIST, MULTIPLY, NEGATIVE, NOT, NOT_BETWEEN, NOT_EQUAL_TO, NOT_EXISTS, NOT_IN, NOT_LIKE, NOT_LIKE_IGNORE_CASE, OBJ_PATH, OR, PRUNED_NODE, SCALAR, SUBQUERY, SUBTRACT, THEN, TRUE, type, WHEN -
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionvoidappendAsEJBQL(List<Object> parameterAccumulator, Appendable out, String rootId) Stores a String representation of Expression as EJBQL using a provided PrintWriter.voidappendAsString(Appendable out) Appends own content as a String to the provided Appendable.protected ObjectEvaluates itself with object, pushing result on the stack.protected StringgetExpressionOperator(int index) getOperand(int index) Returns a value of operand atindex.intReturns a count of operands of this expression.intgetType()Returns a type of expression.inthashCode()voidjjtClose()Called after all the child nodes have been added.voidsetOperand(int index, Object value) Sets a value of operand atindex.protected voidSets an internal collection of values.Creates a copy of this expression node, without copying children.Methods inherited from class org.apache.cayenne.exp.parser.SimpleNode
appendAsEJBQL, appendAsEscapedString, appendChildrenAsEJBQL, appendScalarAsString, connectChildren, encodeScalarAsEJBQL, evaluate, evaluateChild, exists, expName, flattenTree, getEJBQLExpressionOperator, getPathAliases, isValidParent, jjtAddChild, jjtGetChild, jjtGetNumChildren, jjtGetParent, jjtOpen, jjtSetParent, notExists, notExp, pruneNodeForPrunedChild, unwrapChild, wrapChildMethods inherited from class org.apache.cayenne.exp.Expression
andExp, andExp, deepCopy, encodeAsXML, equals, filter, filterObjects, first, joinExp, joinExp, match, orExp, orExp, params, params, paramsArray, setType, toEJBQL, toEJBQL, toString, transform, transformExpression, traverse, traverse
-
Field Details
-
values
-
-
Constructor Details
-
ASTList
public ASTList() -
ASTList
Initializes a list expression with an Object[]. -
ASTList
Initializes a list expression with a Java Collection -
ASTList
Initializes a list expression with a Java Iterator.
-
-
Method Details
-
shallowCopy
Creates a copy of this expression node, without copying children.- Specified by:
shallowCopyin classExpression
-
evaluateNode
Description copied from class:SimpleNodeEvaluates itself with object, pushing result on the stack.- Specified by:
evaluateNodein classSimpleNode- Throws:
Exception
-
getType
public int getType()Description copied from class:ExpressionReturns a type of expression. Most common types are defined as public static fields of this interface.- Overrides:
getTypein classExpression
-
getExpressionOperator
- Specified by:
getExpressionOperatorin classSimpleNode
-
appendAsString
Description copied from class:ExpressionAppends own content as a String to the provided Appendable.- Overrides:
appendAsStringin classSimpleNode- Throws:
IOException- Since:
- 4.0
-
appendAsEJBQL
public void appendAsEJBQL(List<Object> parameterAccumulator, Appendable out, String rootId) throws IOException Description copied from class:ExpressionStores a String representation of Expression as EJBQL using a provided PrintWriter. DB path expressions produce non-standard EJBQL path expressions. If the parameterAccumulator is supplied then as the EJBQL is output, it may load parameters into this list. In this case, the EJBQL output will contain reference to positional parameters. If no parameterAccumulator is supplied and a scalar type is encountered for which there is no EJBQL literal representation (such as dates) then this method will throw a runtime exception to indicate that it was not possible to generate a string-only representation of the Expression in EJBQL.- Overrides:
appendAsEJBQLin classSimpleNode- Throws:
IOException
-
getOperandCount
public int getOperandCount()Description copied from class:ExpressionReturns a count of operands of this expression. In real life there are unary (count == 1), binary (count == 2) and ternary (count == 3) expressions.- Overrides:
getOperandCountin classSimpleNode
-
getOperand
Description copied from class:ExpressionReturns a value of operand atindex. Operand indexing starts at 0.- Overrides:
getOperandin classSimpleNode
-
setOperand
Description copied from class:ExpressionSets a value of operand atindex. Operand indexing starts at 0.- Overrides:
setOperandin classSimpleNode
-
setValues
Sets an internal collection of values. Value argument can be an Object[], a Collection or an iterator. -
jjtClose
public void jjtClose()Description copied from interface:NodeCalled after all the child nodes have been added.- Specified by:
jjtClosein interfaceNode- Overrides:
jjtClosein classSimpleNode
-
hashCode
public int hashCode()- Overrides:
hashCodein classExpression
-